<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            background-color: #bbb;
        }

        #canvas {
            background-color: #fff;
        }
    </style>
</head>

<body>
    <canvas id="canvas" width="400" height="400"></canvas>
</body>
<script src="./arrow.js"></script>
<script src="./utils.js"></script>
<script>
    window.onload = () => {
        var canvas = document.getElementById("canvas");
        var context = canvas.getContext("2d");
        // var mouse = utils.captureMouse(canvas);
        var arrow = new Arrow();

        arrow.x = canvas.width / 2;
        arrow.y = canvas.height / 2;

        (function drawFrame() {
            window.requestAnimationFrame(drawFrame, canvas);
            context.clearRect(0, 0, canvas.width, canvas.height);
            // var dx = mouse.x - arrow.x;
            // var dy = mouse.y - arrow.y;

            // arrow.rotation = Math.atan2(dy, dx);
            arrow.draw(context);
        }());
    };
</script>

</html>